Atascadero, California, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Atascadero, California, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
16th Aug 2021
69AQILowest AQI recorded on
11th Aug 2023
11AQISame Day Analysis (11th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 24 of Good air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 11th Aug - 12th Aug 2025
Atascadero, California, United States
AQI
Day
Night
.
6 AM11th Aug 2025
8 PM
5 AM12th Aug 2025
Day time
Avg. Highest Time
11AM11th Aug
31AQI
Avg. Lowest Time
10AM11th Aug
22AQI
Night time
Avg. Highest Time
4AM12th Aug
32AQI
Avg. Lowest Time
11PM11th Aug
20AQI
In the last 24 hours,
Atascadero's AQI reached its highest point of 32 at 4 AM during the Night, while the lowest point, 20, was recorded at 11 PM during the Night between 11th Aug and 12th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Atascadero, California, United States
JulAug
13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th
Day
Night
13th Jul 2025286 AMAQI
13th Jul 2025267 AMAQI
13th Jul 2025288 AMAQI
13th Jul 2025299 AMAQI
13th Jul 20253010 AMAQI
13th Jul 20252611 AMAQI
13th Jul 20253012 PMAQI
13th Jul 2025281 PMAQI
13th Jul 2025342 PMAQI
13th Jul 2025343 PMAQI
13th Jul 2025364 PMAQI
13th Jul 2025375 PMAQI
13th Jul 2025396 PMAQI
13th Jul 2025307 PMAQI
13th Jul 2025228 PMAQI
13th Jul 2025269 PMAQI
13th Jul 20252410 PMAQI
13th Jul 20252611 PMAQI
14th Jul 20252612 AMAQI
14th Jul 2025241 AMAQI
14th Jul 2025222 AMAQI
14th Jul 2025213 AMAQI
14th Jul 2025184 AMAQI
14th Jul 2025185 AMAQI
19°C12/32°C
14th Jul 2025196 AMAQI
14th Jul 2025227 AMAQI
14th Jul 2025238 AMAQI
14th Jul 2025219 AMAQI
14th Jul 20252210 AMAQI
14th Jul 20252411 AMAQI
14th Jul 20252412 PMAQI
14th Jul 2025251 PMAQI
14th Jul 2025362 PMAQI
14th Jul 2025283 PMAQI
14th Jul 2025304 PMAQI
14th Jul 2025325 PMAQI
14th Jul 2025346 PMAQI
14th Jul 2025247 PMAQI
14th Jul 2025248 PMAQI
14th Jul 2025239 PMAQI
14th Jul 20252210 PMAQI
14th Jul 20252311 PMAQI
15th Jul 20252412 AMAQI
15th Jul 2025211 AMAQI
15th Jul 2025212 AMAQI
15th Jul 2025203 AMAQI
15th Jul 2025144 AMAQI
15th Jul 2025145 AMAQI
21°C13/31°C
15th Jul 2025166 AMAQI
15th Jul 2025197 AMAQI
15th Jul 2025208 AMAQI
15th Jul 2025219 AMAQI
15th Jul 20252410 AMAQI
15th Jul 20252711 AMAQI
15th Jul 20253112 PMAQI
15th Jul 2025231 PMAQI
15th Jul 2025222 PMAQI
15th Jul 2025263 PMAQI
15th Jul 2025244 PMAQI
15th Jul 2025245 PMAQI
15th Jul 2025266 PMAQI
15th Jul 2025287 PMAQI
15th Jul 2025198 PMAQI
15th Jul 2025229 PMAQI
15th Jul 20252710 PMAQI
15th Jul 20252111 PMAQI
16th Jul 20252012 AMAQI
16th Jul 2025211 AMAQI
16th Jul 2025192 AMAQI
16th Jul 2025203 AMAQI
16th Jul 2025184 AMAQI
16th Jul 2025175 AMAQI
17°C11/29°C
16th Jul 2025176 AMAQI
16th Jul 2025197 AMAQI
16th Jul 2025218 AMAQI
16th Jul 2025219 AMAQI
16th Jul 20252410 AMAQI
16th Jul 20252111 AMAQI
16th Jul 20252212 PMAQI
16th Jul 2025191 PMAQI
16th Jul 2025222 PMAQI
16th Jul 2025223 PMAQI
16th Jul 2025234 PMAQI
16th Jul 2025245 PMAQI
16th Jul 2025266 PMAQI
16th Jul 2025187 PMAQI
16th Jul 2025198 PMAQI
16th Jul 2025199 PMAQI
16th Jul 20251810 PMAQI
16th Jul 20252011 PMAQI
17th Jul 20252012 AMAQI
17th Jul 2025201 AMAQI
17th Jul 2025182 AMAQI
17th Jul 2025183 AMAQI
17th Jul 2025184 AMAQI
17th Jul 2025235 AMAQI
16°C11/24°C
17th Jul 2025216 AMAQI
17th Jul 2025207 AMAQI
17th Jul 2025188 AMAQI
17th Jul 2025179 AMAQI
17th Jul 20251510 AMAQI
17th Jul 20251611 AMAQI
17th Jul 20251612 PMAQI
17th Jul 2025191 PMAQI
17th Jul 2025252 PMAQI
17th Jul 2025273 PMAQI
17th Jul 2025284 PMAQI
17th Jul 2025335 PMAQI
17th Jul 2025426 PMAQI
17th Jul 2025187 PMAQI
17th Jul 2025178 PMAQI
17th Jul 2025199 PMAQI
17th Jul 20252010 PMAQI
17th Jul 20252211 PMAQI
18th Jul 20252012 AMAQI
18th Jul 2025171 AMAQI
18th Jul 2025172 AMAQI
18th Jul 2025163 AMAQI
18th Jul 2025144 AMAQI
18th Jul 2025155 AMAQI
19°C11/30°C
18th Jul 2025156 AMAQI
18th Jul 2025167 AMAQI
18th Jul 2025168 AMAQI
18th Jul 2025169 AMAQI
18th Jul 20251610 AMAQI
18th Jul 20251611 AMAQI
18th Jul 20251612 PMAQI
18th Jul 2025161 PMAQI
18th Jul 2025182 PMAQI
18th Jul 2025213 PMAQI
18th Jul 2025224 PMAQI
18th Jul 2025215 PMAQI
18th Jul 2025216 PMAQI
18th Jul 2025177 PMAQI
18th Jul 2025168 PMAQI
18th Jul 2025209 PMAQI
18th Jul 20251910 PMAQI
18th Jul 20252011 PMAQI
19th Jul 20251912 AMAQI
19th Jul 2025181 AMAQI
19th Jul 2025182 AMAQI
19th Jul 2025203 AMAQI
19th Jul 2025174 AMAQI
19th Jul 2025175 AMAQI
20°C11/32°C
19th Jul 2025176 AMAQI
19th Jul 2025227 AMAQI
19th Jul 2025208 AMAQI
19th Jul 2025209 AMAQI
19th Jul 20252010 AMAQI
19th Jul 20252011 AMAQI
19th Jul 20252312 PMAQI
19th Jul 2025221 PMAQI
19th Jul 2025202 PMAQI
19th Jul 2025233 PMAQI
19th Jul 2025244 PMAQI
19th Jul 2025255 PMAQI
19th Jul 2025246 PMAQI
19th Jul 2025207 PMAQI
19th Jul 2025208 PMAQI
19th Jul 2025249 PMAQI
19th Jul 20252010 PMAQI
19th Jul 20252111 PMAQI
20th Jul 20252112 AMAQI
20th Jul 2025211 AMAQI
20th Jul 2025222 AMAQI
20th Jul 2025223 AMAQI
20th Jul 2025204 AMAQI
20th Jul 2025175 AMAQI
19°C11/33°C
20th Jul 2025196 AMAQI
20th Jul 2025217 AMAQI
20th Jul 2025228 AMAQI
20th Jul 2025229 AMAQI
20th Jul 20252110 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252512 PMAQI
20th Jul 2025261 PMAQI
20th Jul 2025272 PMAQI
20th Jul 2025243 PMAQI
20th Jul 2025264 PMAQI
20th Jul 2025255 PMAQI
20th Jul 2025246 PMAQI
20th Jul 2025227 PMAQI
20th Jul 2025238 PMAQI
20th Jul 2025239 PMAQI
20th Jul 20252610 PMAQI
20th Jul 20252311 PMAQI
21st Jul 20252212 AMAQI
21st Jul 2025191 AMAQI
21st Jul 2025192 AMAQI
21st Jul 2025183 AMAQI
21st Jul 2025164 AMAQI
21st Jul 2025165 AMAQI
16°C10/28°C
21st Jul 2025206 AMAQI
21st Jul 2025227 AMAQI
21st Jul 2025208 AMAQI
21st Jul 2025229 AMAQI
21st Jul 20252210 AMAQI
21st Jul 20252011 AMAQI
21st Jul 20253012 PMAQI
21st Jul 2025221 PMAQI
21st Jul 2025252 PMAQI
21st Jul 2025263 PMAQI
21st Jul 2025264 PMAQI
21st Jul 2025265 PMAQI
21st Jul 2025266 PMAQI
21st Jul 2025247 PMAQI
21st Jul 2025208 PMAQI
21st Jul 2025209 PMAQI
21st Jul 20252010 PMAQI
21st Jul 20252311 PMAQI
22nd Jul 20252412 AMAQI
22nd Jul 2025201 AMAQI
22nd Jul 2025192 AMAQI
22nd Jul 2025183 AMAQI
22nd Jul 2025134 AMAQI
22nd Jul 2025145 AMAQI
16°C11/26°C
22nd Jul 2025146 AMAQI
22nd Jul 2025167 AMAQI
22nd Jul 2025168 AMAQI
22nd Jul 2025179 AMAQI
22nd Jul 20251810 AMAQI
22nd Jul 20251811 AMAQI
22nd Jul 20251612 PMAQI
22nd Jul 2025171 PMAQI
22nd Jul 2025142 PMAQI
22nd Jul 2025193 PMAQI
22nd Jul 2025194 PMAQI
22nd Jul 2025205 PMAQI
22nd Jul 2025216 PMAQI
22nd Jul 2025177 PMAQI
22nd Jul 2025168 PMAQI
22nd Jul 2025169 PMAQI
22nd Jul 20251510 PMAQI
22nd Jul 20251411 PMAQI
23rd Jul 20251412 AMAQI
23rd Jul 2025151 AMAQI
23rd Jul 2025152 AMAQI
23rd Jul 2025153 AMAQI
23rd Jul 2025124 AMAQI
23rd Jul 2025115 AMAQI
16°C11/25°C
23rd Jul 2025126 AMAQI
23rd Jul 2025147 AMAQI
23rd Jul 2025168 AMAQI
23rd Jul 2025149 AMAQI
23rd Jul 20251410 AMAQI
23rd Jul 20251611 AMAQI
23rd Jul 20251712 PMAQI
23rd Jul 2025171 PMAQI
23rd Jul 2025182 PMAQI
23rd Jul 2025183 PMAQI
23rd Jul 2025194 PMAQI
23rd Jul 2025195 PMAQI
23rd Jul 2025196 PMAQI
23rd Jul 2025177 PMAQI
23rd Jul 2025168 PMAQI
23rd Jul 2025179 PMAQI
23rd Jul 20251610 PMAQI
23rd Jul 20251611 PMAQI
24th Jul 20251612 AMAQI
24th Jul 2025161 AMAQI
24th Jul 2025162 AMAQI
24th Jul 2025163 AMAQI
24th Jul 2025144 AMAQI
24th Jul 2025155 AMAQI
16°C9/26°C
24th Jul 2025136 AMAQI
24th Jul 2025147 AMAQI
24th Jul 2025158 AMAQI
24th Jul 2025149 AMAQI
24th Jul 20251510 AMAQI
24th Jul 20251411 AMAQI
24th Jul 20252012 PMAQI
24th Jul 2025171 PMAQI
24th Jul 2025182 PMAQI
24th Jul 2025183 PMAQI
24th Jul 2025204 PMAQI
24th Jul 2025195 PMAQI
24th Jul 2025186 PMAQI
24th Jul 2025167 PMAQI
24th Jul 2025168 PMAQI
24th Jul 2025169 PMAQI
24th Jul 20251610 PMAQI
24th Jul 20251811 PMAQI
25th Jul 20251712 AMAQI
25th Jul 2025171 AMAQI
25th Jul 2025162 AMAQI
25th Jul 2025173 AMAQI
25th Jul 2025144 AMAQI
25th Jul 2025145 AMAQI
17°C10/25°C
25th Jul 2025146 AMAQI
25th Jul 2025147 AMAQI
25th Jul 2025148 AMAQI
25th Jul 2025159 AMAQI
25th Jul 20251610 AMAQI
25th Jul 20251411 AMAQI
25th Jul 20251412 PMAQI
25th Jul 2025181 PMAQI
25th Jul 2025182 PMAQI
25th Jul 2025183 PMAQI
25th Jul 2025184 PMAQI
25th Jul 2025185 PMAQI
25th Jul 2025206 PMAQI
25th Jul 2025187 PMAQI
25th Jul 2025168 PMAQI
25th Jul 2025189 PMAQI
25th Jul 20251610 PMAQI
25th Jul 20251711 PMAQI
26th Jul 20251712 AMAQI
26th Jul 2025171 AMAQI
26th Jul 2025162 AMAQI
26th Jul 2025163 AMAQI
26th Jul 2025144 AMAQI
26th Jul 2025165 AMAQI
16°C11/26°C
26th Jul 2025156 AMAQI
26th Jul 2025257 AMAQI
26th Jul 2025158 AMAQI
26th Jul 2025169 AMAQI
26th Jul 20251610 AMAQI
26th Jul 20251611 AMAQI
26th Jul 20251612 PMAQI
26th Jul 2025161 PMAQI
26th Jul 2025162 PMAQI
26th Jul 2025183 PMAQI
26th Jul 2025184 PMAQI
26th Jul 2025175 PMAQI
26th Jul 2025176 PMAQI
26th Jul 2025167 PMAQI
26th Jul 2025168 PMAQI
26th Jul 2025169 PMAQI
26th Jul 20251610 PMAQI
26th Jul 20251611 PMAQI
27th Jul 20251612 AMAQI
27th Jul 2025161 AMAQI
27th Jul 2025152 AMAQI
27th Jul 2025153 AMAQI
27th Jul 2025144 AMAQI
27th Jul 2025145 AMAQI
18°C12/29°C
27th Jul 2025156 AMAQI
27th Jul 2025187 AMAQI
27th Jul 2025208 AMAQI
27th Jul 2025219 AMAQI
27th Jul 20251610 AMAQI
27th Jul 20251611 AMAQI
27th Jul 20251812 PMAQI
27th Jul 2025161 PMAQI
27th Jul 2025172 PMAQI
27th Jul 2025183 PMAQI
27th Jul 2025184 PMAQI
27th Jul 2025185 PMAQI
27th Jul 2025206 PMAQI
27th Jul 2025167 PMAQI
27th Jul 2025158 PMAQI
27th Jul 2025179 PMAQI
27th Jul 20251610 PMAQI
27th Jul 20251711 PMAQI
28th Jul 20251712 AMAQI
28th Jul 2025161 AMAQI
28th Jul 2025172 AMAQI
28th Jul 2025153 AMAQI
28th Jul 2025164 AMAQI
28th Jul 2025145 AMAQI
19°C11/30°C
28th Jul 2025166 AMAQI
28th Jul 2025177 AMAQI
28th Jul 2025178 AMAQI
28th Jul 2025179 AMAQI
28th Jul 20251710 AMAQI
28th Jul 20251811 AMAQI
28th Jul 20252012 PMAQI
28th Jul 2025201 PMAQI
28th Jul 2025202 PMAQI
28th Jul 2025363 PMAQI
28th Jul 2025244 PMAQI
28th Jul 2025225 PMAQI
28th Jul 2025216 PMAQI
28th Jul 2025197 PMAQI
28th Jul 2025188 PMAQI
28th Jul 2025189 PMAQI
28th Jul 20251810 PMAQI
28th Jul 20251811 PMAQI
29th Jul 20251612 AMAQI
29th Jul 2025171 AMAQI
29th Jul 2025162 AMAQI
29th Jul 2025183 AMAQI
29th Jul 2025174 AMAQI
29th Jul 2025175 AMAQI
20°C11/33°C
29th Jul 2025176 AMAQI
29th Jul 2025187 AMAQI
29th Jul 2025198 AMAQI
29th Jul 2025219 AMAQI
29th Jul 20252210 AMAQI
29th Jul 20252011 AMAQI
29th Jul 20252212 PMAQI
29th Jul 2025231 PMAQI
29th Jul 2025212 PMAQI
29th Jul 2025263 PMAQI
29th Jul 2025254 PMAQI
29th Jul 2025245 PMAQI
29th Jul 2025226 PMAQI
29th Jul 2025187 PMAQI
29th Jul 2025168 PMAQI
29th Jul 2025269 PMAQI
29th Jul 20252610 PMAQI
29th Jul 20252411 PMAQI
30th Jul 20252412 AMAQI
30th Jul 2025231 AMAQI
30th Jul 2025242 AMAQI
30th Jul 2025253 AMAQI
30th Jul 2025304 AMAQI
30th Jul 2025325 AMAQI
23°C12/36°C
30th Jul 2025316 AMAQI
30th Jul 2025267 AMAQI
30th Jul 2025228 AMAQI
30th Jul 2025229 AMAQI
30th Jul 20252310 AMAQI
30th Jul 20252411 AMAQI
30th Jul 20252812 PMAQI
30th Jul 2025271 PMAQI
30th Jul 2025272 PMAQI
30th Jul 2025273 PMAQI
30th Jul 2025274 PMAQI
30th Jul 2025275 PMAQI
30th Jul 2025276 PMAQI
30th Jul 2025277 PMAQI
30th Jul 2025278 PMAQI
30th Jul 2025249 PMAQI
30th Jul 20252210 PMAQI
30th Jul 20252211 PMAQI
31st Jul 20252512 AMAQI
31st Jul 2025231 AMAQI
31st Jul 2025202 AMAQI
31st Jul 2025263 AMAQI
31st Jul 2025284 AMAQI
31st Jul 2025245 AMAQI
22°C13/33°C
31st Jul 2025226 AMAQI
31st Jul 2025227 AMAQI
31st Jul 2025218 AMAQI
31st Jul 2025229 AMAQI
31st Jul 20252310 AMAQI
31st Jul 20252311 AMAQI
31st Jul 20252412 PMAQI
31st Jul 2025231 PMAQI
31st Jul 2025292 PMAQI
31st Jul 2025253 PMAQI
31st Jul 2025244 PMAQI
31st Jul 2025215 PMAQI
31st Jul 2025216 PMAQI
31st Jul 2025237 PMAQI
31st Jul 2025228 PMAQI
31st Jul 2025209 PMAQI
31st Jul 20252210 PMAQI
31st Jul 20252211 PMAQI
1st Aug 20252112 AMAQI
1st Aug 2025241 AMAQI
1st Aug 2025222 AMAQI
1st Aug 2025243 AMAQI
1st Aug 2025284 AMAQI
1st Aug 2025305 AMAQI
21°C12/35°C
1st Aug 2025286 AMAQI
1st Aug 2025197 AMAQI
1st Aug 2025218 AMAQI
1st Aug 2025229 AMAQI
1st Aug 20251910 AMAQI
1st Aug 20252111 AMAQI
1st Aug 20252512 PMAQI
1st Aug 2025281 PMAQI
1st Aug 2025272 PMAQI
1st Aug 2025243 PMAQI
1st Aug 2025224 PMAQI
1st Aug 2025245 PMAQI
1st Aug 2025226 PMAQI
1st Aug 2025217 PMAQI
1st Aug 2025238 PMAQI
1st Aug 2025309 PMAQI
1st Aug 20252010 PMAQI
1st Aug 20251911 PMAQI
2nd Aug 20252012 AMAQI
2nd Aug 2025171 AMAQI
2nd Aug 2025182 AMAQI
2nd Aug 2025213 AMAQI
2nd Aug 2025264 AMAQI
2nd Aug 2025185 AMAQI
20°C12/32°C
2nd Aug 2025186 AMAQI
2nd Aug 2025187 AMAQI
2nd Aug 2025228 AMAQI
2nd Aug 2025189 AMAQI
2nd Aug 20252010 AMAQI
2nd Aug 20252211 AMAQI
2nd Aug 20252012 PMAQI
2nd Aug 2025251 PMAQI
2nd Aug 2025252 PMAQI
2nd Aug 2025253 PMAQI
2nd Aug 2025214 PMAQI
2nd Aug 2025225 PMAQI
2nd Aug 2025216 PMAQI
2nd Aug 2025207 PMAQI
2nd Aug 2025228 PMAQI
2nd Aug 2025219 PMAQI
2nd Aug 20252510 PMAQI
2nd Aug 20252011 PMAQI
3rd Aug 20252112 AMAQI
3rd Aug 2025241 AMAQI
3rd Aug 2025242 AMAQI
3rd Aug 2025243 AMAQI
3rd Aug 2025234 AMAQI
3rd Aug 2025225 AMAQI
23°C12/36°C
3rd Aug 2025216 AMAQI
3rd Aug 2025227 AMAQI
3rd Aug 2025198 AMAQI
3rd Aug 2025189 AMAQI
3rd Aug 20252010 AMAQI
3rd Aug 20252011 AMAQI
3rd Aug 20251812 PMAQI
3rd Aug 2025211 PMAQI
3rd Aug 2025202 PMAQI
3rd Aug 2025223 PMAQI
3rd Aug 2025254 PMAQI
3rd Aug 2025225 PMAQI
3rd Aug 2025246 PMAQI
3rd Aug 2025227 PMAQI
3rd Aug 2025288 PMAQI
3rd Aug 2025289 PMAQI
3rd Aug 20252810 PMAQI
3rd Aug 20252811 PMAQI
4th Aug 20253012 AMAQI
4th Aug 2025341 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025353 AMAQI
4th Aug 2025374 AMAQI
4th Aug 2025375 AMAQI
24°C16/36°C
4th Aug 2025356 AMAQI
4th Aug 2025327 AMAQI
4th Aug 2025278 AMAQI
4th Aug 2025269 AMAQI
4th Aug 20252710 AMAQI
4th Aug 20253411 AMAQI
4th Aug 20253712 PMAQI
4th Aug 2025351 PMAQI
4th Aug 2025342 PMAQI
4th Aug 2025313 PMAQI
4th Aug 2025324 PMAQI
4th Aug 2025325 PMAQI
4th Aug 2025326 PMAQI
4th Aug 2025297 PMAQI
4th Aug 2025308 PMAQI
4th Aug 2025369 PMAQI
4th Aug 20253610 PMAQI
4th Aug 20254011 PMAQI
5th Aug 20253812 AMAQI
5th Aug 2025361 AMAQI
5th Aug 2025322 AMAQI
5th Aug 2025323 AMAQI
5th Aug 2025324 AMAQI
5th Aug 2025255 AMAQI
23°C12/36°C
5th Aug 2025226 AMAQI
5th Aug 2025267 AMAQI
5th Aug 2025278 AMAQI
5th Aug 2025309 AMAQI
5th Aug 20253410 AMAQI
5th Aug 20253211 AMAQI
5th Aug 20252912 PMAQI
5th Aug 2025331 PMAQI
5th Aug 2025332 PMAQI
5th Aug 2025273 PMAQI
5th Aug 2025264 PMAQI
5th Aug 2025285 PMAQI
5th Aug 2025306 PMAQI
5th Aug 2025267 PMAQI
5th Aug 2025318 PMAQI
5th Aug 2025269 PMAQI
5th Aug 20252710 PMAQI
5th Aug 20252911 PMAQI
6th Aug 20253012 AMAQI
6th Aug 2025301 AMAQI
6th Aug 2025302 AMAQI
6th Aug 2025343 AMAQI
6th Aug 2025294 AMAQI
6th Aug 2025345 AMAQI
24°C14/37°C
6th Aug 2025266 AMAQI
6th Aug 2025297 AMAQI
6th Aug 2025318 AMAQI
6th Aug 2025289 AMAQI
6th Aug 20252610 AMAQI
6th Aug 20252711 AMAQI
6th Aug 20252812 PMAQI
6th Aug 2025281 PMAQI
6th Aug 2025302 PMAQI
6th Aug 2025283 PMAQI
6th Aug 2025284 PMAQI
6th Aug 2025285 PMAQI
6th Aug 2025226 PMAQI
6th Aug 2025267 PMAQI
6th Aug 2025308 PMAQI
6th Aug 2025289 PMAQI
6th Aug 20252810 PMAQI
6th Aug 20252611 PMAQI
7th Aug 20253612 AMAQI
7th Aug 2025361 AMAQI
7th Aug 2025442 AMAQI
7th Aug 2025403 AMAQI
7th Aug 2025354 AMAQI
7th Aug 2025325 AMAQI
26°C12/39°C
7th Aug 2025366 AMAQI
7th Aug 2025487 AMAQI
7th Aug 2025368 AMAQI
7th Aug 2025419 AMAQI
7th Aug 20254610 AMAQI
7th Aug 20255011 AMAQI
7th Aug 20255112 PMAQI
7th Aug 2025431 PMAQI
7th Aug 2025412 PMAQI
7th Aug 2025403 PMAQI
7th Aug 2025444 PMAQI
7th Aug 2025465 PMAQI
7th Aug 2025506 PMAQI
7th Aug 2025457 PMAQI
7th Aug 2025438 PMAQI
7th Aug 2025449 PMAQI
7th Aug 20254210 PMAQI
7th Aug 20254611 PMAQI
8th Aug 20254112 AMAQI
8th Aug 2025441 AMAQI
8th Aug 2025322 AMAQI
8th Aug 2025303 AMAQI
8th Aug 2025224 AMAQI
8th Aug 2025305 AMAQI
26°C17/39°C
8th Aug 2025326 AMAQI
8th Aug 2025427 AMAQI
8th Aug 2025378 AMAQI
8th Aug 2025409 AMAQI
8th Aug 20253810 AMAQI
8th Aug 20253511 AMAQI
8th Aug 20254312 PMAQI
8th Aug 2025461 PMAQI
8th Aug 2025462 PMAQI
8th Aug 2025513 PMAQI
8th Aug 2025524 PMAQI
8th Aug 2025515 PMAQI
8th Aug 2025546 PMAQI
8th Aug 2025397 PMAQI
8th Aug 2025358 PMAQI
8th Aug 2025309 PMAQI
8th Aug 20253010 PMAQI
8th Aug 20253011 PMAQI
9th Aug 20252912 AMAQI
9th Aug 2025301 AMAQI
9th Aug 2025302 AMAQI
9th Aug 2025313 AMAQI
9th Aug 2025304 AMAQI
9th Aug 2025325 AMAQI
23°C14/37°C
9th Aug 2025326 AMAQI
9th Aug 2025407 AMAQI
9th Aug 2025358 AMAQI
9th Aug 2025349 AMAQI
9th Aug 20253210 AMAQI
9th Aug 20253311 AMAQI
9th Aug 20253612 PMAQI
9th Aug 2025311 PMAQI
9th Aug 2025422 PMAQI
9th Aug 2025563 PMAQI
9th Aug 2025504 PMAQI
9th Aug 2025495 PMAQI
9th Aug 2025496 PMAQI
9th Aug 2025387 PMAQI
9th Aug 2025308 PMAQI
9th Aug 2025389 PMAQI
9th Aug 20253210 PMAQI
9th Aug 20253611 PMAQI
10th Aug 20253612 AMAQI
10th Aug 2025321 AMAQI
10th Aug 2025332 AMAQI
10th Aug 2025323 AMAQI
10th Aug 2025314 AMAQI
10th Aug 2025305 AMAQI
22°C14/36°C
10th Aug 2025296 AMAQI
10th Aug 2025307 AMAQI
10th Aug 2025288 AMAQI
10th Aug 2025269 AMAQI
10th Aug 20252710 AMAQI
10th Aug 20253111 AMAQI
10th Aug 20253612 PMAQI
10th Aug 2025341 PMAQI
10th Aug 2025362 PMAQI
10th Aug 2025383 PMAQI
10th Aug 2025384 PMAQI
10th Aug 2025405 PMAQI
10th Aug 2025376 PMAQI
10th Aug 2025327 PMAQI
10th Aug 2025318 PMAQI
10th Aug 2025279 PMAQI
10th Aug 20252710 PMAQI
10th Aug 20252911 PMAQI
11th Aug 20253212 AMAQI
11th Aug 2025221 AMAQI
11th Aug 2025202 AMAQI
11th Aug 2025233 AMAQI
11th Aug 2025234 AMAQI
11th Aug 2025245 AMAQI
24°C14/38°C
11th Aug 2025246 AMAQI
11th Aug 2025237 AMAQI
11th Aug 2025238 AMAQI
11th Aug 2025229 AMAQI
11th Aug 20252210 AMAQI
11th Aug 20253111 AMAQI
11th Aug 20252812 PMAQI
11th Aug 2025261 PMAQI
11th Aug 2025272 PMAQI
11th Aug 2025243 PMAQI
11th Aug 2025244 PMAQI
11th Aug 2025255 PMAQI
11th Aug 2025266 PMAQI
11th Aug 2025237 PMAQI
11th Aug 2025228 PMAQI
11th Aug 2025249 PMAQI
11th Aug 20252110 PMAQI
11th Aug 20252011 PMAQI
12th Aug 20252112 AMAQI
12th Aug 2025231 AMAQI
12th Aug 2025272 AMAQI
12th Aug 2025303 AMAQI
12th Aug 2025324 AMAQI
12th Aug 2025285 AMAQI
24°C14/40°C
12th Aug 2025366 AMAQI
6 AM12th Aug 2025227 AMAQI
12th Aug 2025238 AMAQI
12th Aug 2025249 AMAQI
1 PM
8 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 6 PM
25AQI
13 hours / Day
390 hours / Month
Avg. Lowest Time
6 AM - 8 PM
25AQI
15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 6 PM (Avg. 25), while the lowest AQI was between 6 AM to 8 PM (Avg. 25).
Night time
Avg. Highest Time
12 AM - 11 PM
23AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 5 AM
23AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 23), while the lowest AQI was between 12 AM to 5 AM (Avg. 23).
2025 Days Vs Air Quality
Atascadero, California, United States
2025
99%
220
1%
3
Total number of days with different AQI categories in last 224 days in 2025 (141 days remaining)
Good
220 DaysModerate
3 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2025, 99% of 224 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Atascadero, California, United States
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st January 2025
47AQI
47AQI
2nd January 2025
45AQI
45AQI
3rd January 2025
38AQI
38AQI
4th January 2025
29AQI
29AQI
5th January 2025
28AQI
28AQI
6th January 2025
31AQI
31AQI
7th January 2025
31AQI
31AQI
8th January 2025
39AQI
39AQI
9th January 2025
34AQI
34AQI
10th January 2025
40AQI
40AQI
11th January 2025
41AQI
41AQI
12th January 2025
38AQI
38AQI
13th January 2025
40AQI
40AQI
14th January 2025
38AQI
38AQI
15th January 2025
42AQI
42AQI
16th January 2025
37AQI
37AQI
17th January 2025
40AQI
40AQI
18th January 2025
48AQI
48AQI
19th January 2025
55AQI
55AQI
20th January 2025
49AQI
49AQI
21st January 2025
48AQI
48AQI
22nd January 2025
58AQI
58AQI
23rd January 2025
51AQI
51AQI
24th January 2025
42AQI
42AQI
25th January 2025
45AQI
45AQI
26th January 2025
32AQI
32AQI
27th January 2025
30AQI
30AQI
28th January 2025
37AQI
37AQI
29th January 2025
43AQI
43AQI
30th January 2025
43AQI
43AQI
31st January 2025
43AQI
43AQI
1st February 2025
34AQI
34AQI
2nd February 2025
25AQI
25AQI
3rd February 2025
27AQI
27AQI
4th February 2025
28AQI
28AQI
5th February 2025
22AQI
22AQI
6th February 2025
26AQI
26AQI
7th February 2025
24AQI
24AQI
8th February 2025
26AQI
26AQI
9th February 2025
28AQI
28AQI
10th February 2025
32AQI
32AQI
11th February 2025
38AQI
38AQI
12th February 2025
26AQI
26AQI
13th February 2025
23AQI
23AQI
14th February 2025
27AQI
27AQI
15th February 2025
27AQI
27AQI
16th February 2025
33AQI
33AQI
17th February 2025
28AQI
28AQI
18th February 2025
29AQI
29AQI
19th February 2025
29AQI
29AQI
20th February 2025
25AQI
25AQI
21st February 2025
34AQI
34AQI
22nd February 2025
40AQI
40AQI
23rd February 2025
37AQI
37AQI
24th February 2025
31AQI
31AQI
25th February 2025
25AQI
25AQI
26th February 2025
34AQI
34AQI
27th February 2025
34AQI
34AQI
28th February 2025
38AQI
38AQI
1st March 2025
33AQI
33AQI
2nd March 2025
26AQI
26AQI
3rd March 2025
23AQI
23AQI
4th March 2025
27AQI
27AQI
5th March 2025
25AQI
25AQI
6th March 2025
23AQI
23AQI
7th March 2025
33AQI
33AQI
8th March 2025
32AQI
32AQI
9th March 2025
31AQI
31AQI
10th March 2025
30AQI
30AQI
11th March 2025
33AQI
33AQI
12th March 2025
30AQI
30AQI
13th March 2025
26AQI
26AQI
14th March 2025
25AQI
25AQI
15th March 2025
44AQI
44AQI
16th March 2025
44AQI
44AQI
17th March 2025
31AQI
31AQI
18th March 2025
27AQI
27AQI
19th March 2025
31AQI
31AQI
20th March 2025
27AQI
27AQI
21st March 2025
26AQI
26AQI
22nd March 2025
24AQI
24AQI
23rd March 2025
24AQI
24AQI
24th March 2025
25AQI
25AQI
25th March 2025
25AQI
25AQI
26th March 2025
21AQI
21AQI
27th March 2025
20AQI
20AQI
28th March 2025
20AQI
20AQI
29th March 2025
16AQI
16AQI
30th March 2025
16AQI
16AQI
31st March 2025
16AQI
16AQI
1st April 2025
16AQI
16AQI
2nd April 2025
21AQI
21AQI
3rd April 2025
17AQI
17AQI
4th April 2025
21AQI
21AQI
5th April 2025
16AQI
16AQI
6th April 2025
17AQI
17AQI
7th April 2025
14AQI
14AQI
8th April 2025
15AQI
15AQI
9th April 2025
15AQI
15AQI
10th April 2025
20AQI
20AQI
11th April 2025
20AQI
20AQI
12th April 2025
22AQI
22AQI
13th April 2025
22AQI
22AQI
14th April 2025
26AQI
26AQI
15th April 2025
22AQI
22AQI
16th April 2025
19AQI
19AQI
17th April 2025
21AQI
21AQI
18th April 2025
20AQI
20AQI
19th April 2025
18AQI
18AQI
20th April 2025
24AQI
24AQI
21st April 2025
17AQI
17AQI
22nd April 2025
14AQI
14AQI
23rd April 2025
17AQI
17AQI
24th April 2025
19AQI
19AQI
25th April 2025
16AQI
16AQI
26th April 2025
14AQI
14AQI
27th April 2025
12AQI
12AQI
28th April 2025
18AQI
18AQI
29th April 2025
21AQI
21AQI
30th April 2025
17AQI
17AQI
1st May 2025
19AQI
19AQI
2nd May 2025
19AQI
19AQI
3rd May 2025
17AQI
17AQI
4th May 2025
23AQI
23AQI
5th May 2025
29AQI
29AQI
6th May 2025
33AQI
33AQI
7th May 2025
29AQI
29AQI
8th May 2025
31AQI
31AQI
9th May 2025
26AQI
26AQI
10th May 2025
27AQI
27AQI
11th May 2025
22AQI
22AQI
12th May 2025
18AQI
18AQI
13th May 2025
17AQI
17AQI
14th May 2025
19AQI
19AQI
15th May 2025
22AQI
22AQI
16th May 2025
20AQI
20AQI
17th May 2025
20AQI
20AQI
18th May 2025
19AQI
19AQI
19th May 2025
22AQI
22AQI
20th May 2025
20AQI
20AQI
21st May 2025
22AQI
22AQI
22nd May 2025
24AQI
24AQI
23rd May 2025
23AQI
23AQI
24th May 2025
20AQI
20AQI
25th May 2025
19AQI
19AQI
26th May 2025
17AQI
17AQI
27th May 2025
18AQI
18AQI
28th May 2025
19AQI
19AQI
29th May 2025
16AQI
16AQI
30th May 2025
23AQI
23AQI
31st May 2025
28AQI
28AQI
1st June 2025
25AQI
25AQI
2nd June 2025
21AQI
21AQI
3rd June 2025
18AQI
18AQI
4th June 2025
22AQI
22AQI
5th June 2025
19AQI
19AQI
6th June 2025
16AQI
16AQI
7th June 2025
20AQI
20AQI
8th June 2025
17AQI
17AQI
9th June 2025
17AQI
17AQI
10th June 2025
20AQI
20AQI
11th June 2025
24AQI
24AQI
12th June 2025
29AQI
29AQI
13th June 2025
26AQI
26AQI
14th June 2025
24AQI
24AQI
15th June 2025
23AQI
23AQI
16th June 2025
24AQI
24AQI
17th June 2025
24AQI
24AQI
18th June 2025
21AQI
21AQI
19th June 2025
25AQI
25AQI
20th June 2025
31AQI
31AQI
21st June 2025
28AQI
28AQI
22nd June 2025
24AQI
24AQI
23rd June 2025
25AQI
25AQI
24th June 2025
21AQI
21AQI
25th June 2025
19AQI
19AQI
26th June 2025
20AQI
20AQI
27th June 2025
21AQI
21AQI
28th June 2025
26AQI
26AQI
29th June 2025
27AQI
27AQI
30th June 2025
24AQI
24AQI
1st July 2025
25AQI
25AQI
2nd July 2025
21AQI
21AQI
3rd July 2025
26AQI
26AQI
4th July 2025
24AQI
24AQI
5th July 2025
46AQI
46AQI
6th July 2025
37AQI
37AQI
7th July 2025
31AQI
31AQI
8th July 2025
24AQI
24AQI
9th July 2025
22AQI
22AQI
10th July 2025
22AQI
22AQI
11th July 2025
30AQI
30AQI
12th July 2025
33AQI
33AQI
13th July 2025
30AQI
30AQI
14th July 2025
24AQI
24AQI
15th July 2025
22AQI
22AQI
16th July 2025
20AQI
20AQI
17th July 2025
21AQI
21AQI
18th July 2025
18AQI
18AQI
19th July 2025
20AQI
20AQI
20th July 2025
23AQI
23AQI
21st July 2025
21AQI
21AQI
22nd July 2025
17AQI
17AQI
23rd July 2025
16AQI
16AQI
24th July 2025
16AQI
16AQI
25th July 2025
16AQI
16AQI
26th July 2025
16AQI
16AQI
27th July 2025
16AQI
16AQI
28th July 2025
18AQI
18AQI
29th July 2025
20AQI
20AQI
30th July 2025
26AQI
26AQI
31st July 2025
23AQI
23AQI
1st August 2025
24AQI
24AQI
2nd August 2025
21AQI
21AQI
3rd August 2025
23AQI
23AQI
4th August 2025
34AQI
34AQI
5th August 2025
30AQI
30AQI
6th August 2025
29AQI
29AQI
7th August 2025
42AQI
42AQI
8th August 2025
38AQI
38AQI
9th August 2025
36AQI
36AQI
10th August 2025
32AQI
32AQI
11th August 2025
24AQI
24AQI
41AQI
30AQI
27AQI
18AQI
22AQI
23AQI
23AQI
30AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202526AQI
28
3
28
31
30
31
30
31
11
220
3
Highest AQI recorded in
January41AQI
Lowest AQI recorded in
April18AQI
202426AQI
31
29
31
30
31
30
31
31
30
31
29
1
25
6
359
7
Highest AQI recorded in
December41AQI
Lowest AQI recorded in
February17AQI
202325AQI
31
27
1
31
30
31
30
31
31
25
5
31
29
30
1
357
7
Highest AQI recorded in
February33AQI
Lowest AQI recorded in
May18AQI
202231AQI
17
13
15
7
31
30
14
1
30
24
2
29
31
24
6
27
4
274
31
Highest AQI recorded in
January51AQI
Lowest AQI recorded in
July21AQI
202131AQI
27
3
26
2
31
30
31
30
31
28
3
26
4
30
1
26
4
29
2
345
19
Highest AQI recorded in
September37AQI
Lowest AQI recorded in
March23AQI
202038AQI
13
20
18
30
30
22
3
3
3
16
13
1
21
6
3
1
25
5
25
6
220
33
7
4
Highest AQI recorded in
August56AQI
Lowest AQI recorded in
July24AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2020(Avg.)
38AQILeast Polluted Year Recorded
2023(Avg.)
25AQIAtascadero's annual 2025 AQI (26) shows an average percentage change of -10.08% (improved AQI) compared to previous years: 2020 (38), 2021 (31), 2022 (31), 2023 (25), 2024 (26).
